Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is having trouble understanding what gear you want to be in.
The transmission mode switch is responsible for communicating the driver's gear selection to the vehicle's computer. A malfunction can cause incorrect gear operation.
P1703 indicates that the transmission mode switch, which tells the vehicle's computer what gear the driver has selected, is not functioning properly. This could be due to an electrical fault, a mechanical issue, or a problem with the switch itself.
• Check Engine Light is on
• Vehicle stuck in one gear
• Erratic shifting or transmission performance
• Faulty transmission mode switch
• Wiring issues or poor connections
• Malfunctioning transmission control module
Transmission Mode Switch: A component that communicates the driver's gear selection to the vehicle's computer.
Transmission Control Module: An electronic component that controls the transmission's operation.
• Check for other related codes
• Inspect the transmission mode switch and wiring
• Test the transmission control module
• Replace the transmission mode switch
• Repair or replace damaged wiring
• Reprogram or replace the transmission control module
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $400
Moderate
• Ford F-150
• Honda Accord
• Toyota Camry
• Regularly check and maintain transmission fluid levels
• Inspect wiring for wear and tear
• Ensure proper gear engagement
Transmission Issue
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult with a professional mechanic for a detailed diagnosis.
Check with your vehicle manufacturer for specific warranty coverage related to the transmission system.
P1703 has been a common code for vehicles with electronic transmission controls, especially in models with complex gear systems.
Moderate – It is important to address this issue to avoid potential transmission damage.
Driving with a malfunctioning transmission can be unsafe and may lead to further mechanical issues.
• Vehicle in park
• Engine running
The transmission mode switch is typically located on the side of the transmission or near the gear shifter.
Q: Can I drive with a P1703 code?
A: It's not recommended, as it may cause further damage to the transmission.
Q: How do I reset the P1703 code?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.
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